See how the blue-ringed octopus warns predators away—and paralyzes prey. | National Geographic

Blue-ringed octopuses have a beak-like mouth with a radula for feeding. They inject their venom through a sharp, parrot-like beak located in the center of their tentacles. #octopus #ocean #travel | Critter Hunter

Did somebody say glow up? 🐙✨ This blue-ringed octopus can trigger muscles to dial up the color in her rings. With thousands of light-reflecting cells, she’s quite the eerie enchantress 🔮 #SecretsOfTheOctopus is now streaming on Disney and Hulu. | National Geographic Animals

Although only 8-10 inches long, the blue-ringed octopus is one of the most venomous animals on the planet! Their bright blue rings act as a warning to potential predators. Learn more in our Marine Life Encyclopedia: https://bit.ly/3hREuut | Oceana